He pointed out that Novak has 23 wins in a row against 2-handers but his only three losses this year were against 1-handers. He felt that the low slicers and different trajectories created by the one-handers (the great ones albeit) are harder for Novak than the predictable power and trajectory of the two-handers. Valid point IMO. Not like he is saying that a one-hander will always beat Novak. Gimelstob pointed out that Nadal's leftiness also can throw off Novak. Discuss (if you like tennis tactics, that is).